Mastering the CIDESCO Exam: Essential Prep
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
I Biological and non-biological substances both need oxygen for their existence. II The
human body consists only of biological substances. - ansI is correct and II is incorrect
Characteristics of life include: - ansgrowth and metabolism
Examples of synthetic substances are: - ansplastics and silicones
Examples of organic biological substances are: - anscarbohydrates and fats
Examples of mineral substances are: - ansparaffins and petroleum
Matter is everything that: - ansoccupies space and has weight
The three forms of matter are solids, liquids and: - ansgases
What property does all matter have? - ansAll matter has weight
Condensation is the change of matter from: - ansa gas to a liquid
Vapourisation is the change of matter from: - ansliquid to a gas
Melting is the change of matter from: - ansa solid to a liquid
Sublimation is the change of matter from: - ansa solid to a gas
Condensation is: - ansthe change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new substance is
called a/an: - ansphysical change
The immediate change of a solid into a vapour is called: - anssublimation
An example of a single-celled cellular organism is: - ansa bacterium
I. A micro-organism is the smallest part of the human body. II All micro-organisms need
nutrients for their existence. - ansI is incorrect and II is correct
Examples of bacteria are: - ansbacilli and cocci
I. Every living organism needs some non-biological substances for it's existence. II. All non-
biological substances are found as minerals in the earth. - ansI is correct and II is incorrect
Science deals mainly with: - ansphysics and chemistry
The study of the structure of the body is called: - ansanatomy
The study of the functions of living organisms is: - ansphysiology
I Anatomy is a very important science in the field of biology. II Anatomy is the science
which deals with the functions of the human body. - ansI is correct and II is incorrect
I Physiology is a very important science in the field of biology. II Physiology is the science
which deals with the functions of the body. - ansI and II are both correct
Which one of the following belongs to the science of chemistry? - ansThe alteration of the
structure of molecules
I Chemical reactions only take place outside and not inside a living organism. II The structure
of molecules change during chemical reactions. - ansI is incorrect and II is correct
The field of physics includes: - ansheat and electricity
Which one of the following belongs to the field of physics? - ansSound, electricity and heat
The field of physics includes: - ansthe science of electricity
An anion is: - ansA negatively charged atom
An anion is: - ansa negatively charged chloride atom (CI-)
A cation is: - ansA positively charged sodium atom (Na+)
An electrolyte is: - ansA substance which, dissolved in water, splits into ions
Examples of electrolytes are: - ansacids and salts
An example of an electrolyte is: - anssalt-solution
An acid is an electrolyte because: - ansit can conduct an electric current
,Mastering the CIDESCO Exam: Essential Prep
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
An example of an inorganic acid is: - anssulphuric acid
An alkali must contain: - ansmetal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - anssoap
If a metal-oxide is dissolved in water it forms: - ansan alkali
The pH scale is used to measure the degree of acidity or: - ansalkalinity
pH can be decreased by: - ansincreasing hydrogen-ions
The letter p in pH means: - anspotential
pH is: - ansthe number of free H-ions in solution
If the pH of a solution is between 5 and 7, the solution is a: - answeak acid
If the pH of a solution is between 1 and 3 the solution is a: - ansstrong acid
If the pH of a solution is between 7 and 9 the solution is a: - answeak alkali
If the pH of a solution is between 12 and 14 the solution is: - ansstrong alkali
The pH of distilled water is: - ans7
Lemon juice, with a pH reading of about 2, is considered to be: - ansacid
Pure water, with a pH of 7, is considered to be: - ansneutral
Substances having a pH value above 9.5 are considered to be: - ansalkaline
The pH of the skin's acid mantle is: - ans5.5
A characteristic of a weak acid is that it: - anssupports the natural pH of the skin
A characteristic of a weak alkali is that it: - anssoftens the stratum corneum of the skin
The effect of a strong acid is: - anscorrosive and therefore of no use in beauty therapy
A characteristic of organic acids is that: - ansthey contain the element carbon (C)
Organic acids are found in: - anssebum and plants
An organic acid contains the chemical-group: - ansCOOH
An anode is: - ansA positively charged electrode
A cathode is: - ansA negatively charged electrode
Examples of electrodes which are used in beauty therapy are: - ansthe needles used for
galvanic electrolysis
In physics, radiation means: - ansthe electro-magnectic waves in space system
The unit of frequency is: - ansHertz
In physics, frequency means: - ansthe number of times per second an electro-magnetic-wave
can change direction
The unit of frequency is: - ansHertz
Hertz is a unit of: - ansfrequency
In the visible spectrum the colours in the correct order are: - ansred, orange, yellow and green
In the visible spectrum the colours in the correct order are: - ansgreen, blue, indigo and violet
Invisible rays which can be used in beauty therapy are: - ansinfra-red and ultra-violet rays
Infra-red radiation: - ansis invisible and can be felt
Infra-red radiation is absorbed: - ansin the dermis and muscles
Infra-red rays can be used in beauty therapy for: - answarming
The effect of infra-red rays on the skin is to: - answarm the deeper layers of the skin
An indication for a treatment with infra-red rays is: - ansa poor blood circulation in the skin
A contra-indication to treatment with infra-red radiation is: - ansskin showing
teleangiectasias on the cheek area
Infra-red radiation is used: - ansto warm the tissues before massage
, Mastering the CIDESCO Exam: Essential Prep
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
Ultra-violet radiation can be useful in beauty therapy because of the: - anschemical effect on
the skin
Which of the following radiation has the most anti-bacterial effect? - ansUV-C
What is the safest radiation that can be used to increase pigmentation? - ansUV-A
Which rays are mostly used in ray-treatments to increase pigmentation? - ansUV-A and UV-
B
Ultra-violet radiation is absorbed: - ansmainly in the epidermis
The radiation mainly responsible for tanning the skin is: - ansUV-A
Skin cancer is most likely caused by: - ansUltra-violet
An electric current is: - ansA flow of electrons
Which electric currents can be used in electrotherapy? - ansHigh frequency currents of high
voltage
Which electric currents can be used in electrotherapy? - ansHigh frequency and middle
frequency currents both of low voltage
Which electric currents can be used in electrotherapy? - ansFaradic and galvanic currents
both of low voltage
Examples of solid conductors are: - ansmetals
Examples of liquid conductors are: - ansfluids in which ions are present
Examples of liquid conductors are: - ansbody fluids and alkali solutions
Which gas can conduct electric current? - ansneon
Examples of insulators are: - ansplastics
An example of an insulator is: - ansrubber
The strength of an electric current is measured by it's: - ansamperage
The pressure of an electric current is measured by it's: - ansvoltage
The power of an electrical appliance is measured by it's: - answattage
In an electrical circuit if the voltage is doubled and the resistance halved, the intensity of the
current is: - ansis increased four times
The unit of current strength is: - ansampere
The unit of current pressure is: - ansvolt
The unit of electrical resistance is: - ansohm
The unit of electrical power is: - answatt
A current with a constant strength used in beauty therapy is called: - ansgalvanic
A so-called "faradic type current" is: - ansAn interrupted galvanic current
The current that is used to tone muscles is called: - ansfaradic
A so-called "faradic type current" is different from a galvanic current in beauty therapy
because: - ansit is more effective for training muscles
A galvanic current is different from a so-called "faradic type current" in beauty therapy
because: - ansit is more effective for iontophoresis
Which machine for treatments in beauty therapy supplies galvanic current? - ansA machine
for iontophoresis
For which treatments in beauty therapy is galvanic current used? - ansIontophoresis
For which treatments in beauty therapy is galvanic current used? - ansIontophoresis and
electric desincrustation
The meaning of iontophoresis is: - ansto force cosmetic ingredients deeper into the skin
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
I Biological and non-biological substances both need oxygen for their existence. II The
human body consists only of biological substances. - ansI is correct and II is incorrect
Characteristics of life include: - ansgrowth and metabolism
Examples of synthetic substances are: - ansplastics and silicones
Examples of organic biological substances are: - anscarbohydrates and fats
Examples of mineral substances are: - ansparaffins and petroleum
Matter is everything that: - ansoccupies space and has weight
The three forms of matter are solids, liquids and: - ansgases
What property does all matter have? - ansAll matter has weight
Condensation is the change of matter from: - ansa gas to a liquid
Vapourisation is the change of matter from: - ansliquid to a gas
Melting is the change of matter from: - ansa solid to a liquid
Sublimation is the change of matter from: - ansa solid to a gas
Condensation is: - ansthe change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new substance is
called a/an: - ansphysical change
The immediate change of a solid into a vapour is called: - anssublimation
An example of a single-celled cellular organism is: - ansa bacterium
I. A micro-organism is the smallest part of the human body. II All micro-organisms need
nutrients for their existence. - ansI is incorrect and II is correct
Examples of bacteria are: - ansbacilli and cocci
I. Every living organism needs some non-biological substances for it's existence. II. All non-
biological substances are found as minerals in the earth. - ansI is correct and II is incorrect
Science deals mainly with: - ansphysics and chemistry
The study of the structure of the body is called: - ansanatomy
The study of the functions of living organisms is: - ansphysiology
I Anatomy is a very important science in the field of biology. II Anatomy is the science
which deals with the functions of the human body. - ansI is correct and II is incorrect
I Physiology is a very important science in the field of biology. II Physiology is the science
which deals with the functions of the body. - ansI and II are both correct
Which one of the following belongs to the science of chemistry? - ansThe alteration of the
structure of molecules
I Chemical reactions only take place outside and not inside a living organism. II The structure
of molecules change during chemical reactions. - ansI is incorrect and II is correct
The field of physics includes: - ansheat and electricity
Which one of the following belongs to the field of physics? - ansSound, electricity and heat
The field of physics includes: - ansthe science of electricity
An anion is: - ansA negatively charged atom
An anion is: - ansa negatively charged chloride atom (CI-)
A cation is: - ansA positively charged sodium atom (Na+)
An electrolyte is: - ansA substance which, dissolved in water, splits into ions
Examples of electrolytes are: - ansacids and salts
An example of an electrolyte is: - anssalt-solution
An acid is an electrolyte because: - ansit can conduct an electric current
,Mastering the CIDESCO Exam: Essential Prep
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
An example of an inorganic acid is: - anssulphuric acid
An alkali must contain: - ansmetal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - anssoap
If a metal-oxide is dissolved in water it forms: - ansan alkali
The pH scale is used to measure the degree of acidity or: - ansalkalinity
pH can be decreased by: - ansincreasing hydrogen-ions
The letter p in pH means: - anspotential
pH is: - ansthe number of free H-ions in solution
If the pH of a solution is between 5 and 7, the solution is a: - answeak acid
If the pH of a solution is between 1 and 3 the solution is a: - ansstrong acid
If the pH of a solution is between 7 and 9 the solution is a: - answeak alkali
If the pH of a solution is between 12 and 14 the solution is: - ansstrong alkali
The pH of distilled water is: - ans7
Lemon juice, with a pH reading of about 2, is considered to be: - ansacid
Pure water, with a pH of 7, is considered to be: - ansneutral
Substances having a pH value above 9.5 are considered to be: - ansalkaline
The pH of the skin's acid mantle is: - ans5.5
A characteristic of a weak acid is that it: - anssupports the natural pH of the skin
A characteristic of a weak alkali is that it: - anssoftens the stratum corneum of the skin
The effect of a strong acid is: - anscorrosive and therefore of no use in beauty therapy
A characteristic of organic acids is that: - ansthey contain the element carbon (C)
Organic acids are found in: - anssebum and plants
An organic acid contains the chemical-group: - ansCOOH
An anode is: - ansA positively charged electrode
A cathode is: - ansA negatively charged electrode
Examples of electrodes which are used in beauty therapy are: - ansthe needles used for
galvanic electrolysis
In physics, radiation means: - ansthe electro-magnectic waves in space system
The unit of frequency is: - ansHertz
In physics, frequency means: - ansthe number of times per second an electro-magnetic-wave
can change direction
The unit of frequency is: - ansHertz
Hertz is a unit of: - ansfrequency
In the visible spectrum the colours in the correct order are: - ansred, orange, yellow and green
In the visible spectrum the colours in the correct order are: - ansgreen, blue, indigo and violet
Invisible rays which can be used in beauty therapy are: - ansinfra-red and ultra-violet rays
Infra-red radiation: - ansis invisible and can be felt
Infra-red radiation is absorbed: - ansin the dermis and muscles
Infra-red rays can be used in beauty therapy for: - answarming
The effect of infra-red rays on the skin is to: - answarm the deeper layers of the skin
An indication for a treatment with infra-red rays is: - ansa poor blood circulation in the skin
A contra-indication to treatment with infra-red radiation is: - ansskin showing
teleangiectasias on the cheek area
Infra-red radiation is used: - ansto warm the tissues before massage
, Mastering the CIDESCO Exam: Essential Prep
Tips.
AN Ultimate Exam Study Guide for
Guaranteed Success.
Top Rated Study Guide for Top Score updated
Guide 2025/2026
Ultra-violet radiation can be useful in beauty therapy because of the: - anschemical effect on
the skin
Which of the following radiation has the most anti-bacterial effect? - ansUV-C
What is the safest radiation that can be used to increase pigmentation? - ansUV-A
Which rays are mostly used in ray-treatments to increase pigmentation? - ansUV-A and UV-
B
Ultra-violet radiation is absorbed: - ansmainly in the epidermis
The radiation mainly responsible for tanning the skin is: - ansUV-A
Skin cancer is most likely caused by: - ansUltra-violet
An electric current is: - ansA flow of electrons
Which electric currents can be used in electrotherapy? - ansHigh frequency currents of high
voltage
Which electric currents can be used in electrotherapy? - ansHigh frequency and middle
frequency currents both of low voltage
Which electric currents can be used in electrotherapy? - ansFaradic and galvanic currents
both of low voltage
Examples of solid conductors are: - ansmetals
Examples of liquid conductors are: - ansfluids in which ions are present
Examples of liquid conductors are: - ansbody fluids and alkali solutions
Which gas can conduct electric current? - ansneon
Examples of insulators are: - ansplastics
An example of an insulator is: - ansrubber
The strength of an electric current is measured by it's: - ansamperage
The pressure of an electric current is measured by it's: - ansvoltage
The power of an electrical appliance is measured by it's: - answattage
In an electrical circuit if the voltage is doubled and the resistance halved, the intensity of the
current is: - ansis increased four times
The unit of current strength is: - ansampere
The unit of current pressure is: - ansvolt
The unit of electrical resistance is: - ansohm
The unit of electrical power is: - answatt
A current with a constant strength used in beauty therapy is called: - ansgalvanic
A so-called "faradic type current" is: - ansAn interrupted galvanic current
The current that is used to tone muscles is called: - ansfaradic
A so-called "faradic type current" is different from a galvanic current in beauty therapy
because: - ansit is more effective for training muscles
A galvanic current is different from a so-called "faradic type current" in beauty therapy
because: - ansit is more effective for iontophoresis
Which machine for treatments in beauty therapy supplies galvanic current? - ansA machine
for iontophoresis
For which treatments in beauty therapy is galvanic current used? - ansIontophoresis
For which treatments in beauty therapy is galvanic current used? - ansIontophoresis and
electric desincrustation
The meaning of iontophoresis is: - ansto force cosmetic ingredients deeper into the skin
